bu·tor·pha·nol 
(by-tôrfə-nŏl)
(by-tôrfə-nŏl)n.
A synthetic opioid drug, C21H29NO2, given by injection or nasal spray in its tartrate form to treat pain and to supplement anesthesia.
[BUT(YL) + (m)orph(in)an, structural basis of a group of opioids; see DEXTROMETHORPHAN + -OL.]
- postillion
- postimpressionism
- postimpressionist
- postimpressionistic
- postindustrial
- posting
- Post-it
- postlapsarian
- postlude
- postman
- postmark
- postmaster
- postmaster general
- postmastership
- postmenopausal
- postmenstrual
- postmeridian
- post meridiem
- postmillenarian
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- postmillennial
- postmillennialism
- postmillennialist
- postmillennian
- postmistress